Struct oration::db::Conn

pub struct Conn(pub PooledConnection<ConnectionManager<SqliteConnection>>);

Connection request guard type: a wrapper around an r2d2 pooled connection.

Methods from Deref<Target = SqliteConnection>

pub fn immediate_transaction<T, E, F>(&self, f: F) -> Result<T, E> where     E: From<Error>,     F: FnOnce() -> Result<T, E>,

Run a transaction with BEGIN IMMEDIATE

This method will return an error if a transaction is already open.

Example

conn.immediate_transaction(|| {
    // Do stuff in a transaction
    Ok(())
})

pub fn exclusive_transaction<T, E, F>(&self, f: F) -> Result<T, E> where     E: From<Error>,     F: FnOnce() -> Result<T, E>,

Run a transaction with BEGIN EXCLUSIVE

This method will return an error if a transaction is already open.

Example

conn.exclusive_transaction(|| {
    // Do stuff in a transaction
    Ok(())
})

pub fn register_sql_function<ArgsSqlType, RetSqlType, Args, Ret, F>(     &self,     fn_name: &str,     deterministic: bool,     f: F ) -> Result<(), Error> where     Args: Queryable<ArgsSqlType, Sqlite>,     F: FnMut(Args) -> Ret + Send + 'static,     Ret: ToSql<RetSqlType, Sqlite>,     Sqlite: HasSqlType<RetSqlType>,

Trait Implementations

impl Deref for Conn

type Target = SqliteConnection

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, 'r> FromRequest<'a, 'r> for Conn

Attempts to retrieve a single connection from the managed database pool. If no pool is currently managed, fails with an InternalServerError status. If no connections are available, fails with a ServiceUnavailable status.

type Error = ()

The associated error to be returned if derivation fails.

fn from_request(request: &'a Request<'r>) -> Outcome<Conn, ()>

Derives an instance of Self from the incoming request metadata.